Seiko Cal. 3891 - 420

Seiko 3891-420

The 3891-420 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3891 caliber with 20j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-2dedf8c70a4c]

Also known as: Panda, Silverwave

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Navy
Jewels
20j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1967

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